DEVICE FOR PREVENTING BIRDS FROM COMING FLYING, AND METHOD FOR PRODUCING ROTARY BODY THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a device for preventing birds from coming flying with which the birds can be prevented from coming flying and sitting on, and environmental pollution, or the like, caused by excrement of the birds can be prevented.;SOLUTION: The device for preventing the birds from coming flying has a slender rotary body 1 rotating around one axis center X by receiving wind. The rotary body 1 has a polygonal prism shaped core part 2 twisted around the one axis center X, and twisted blade parts 3 obtained by extending each side of the polygon of the core part 2 in the cross section to one side, and is molded integrally with a plastic.;COPYRIGHT: (C)2005,JPO&NCIPI